Pith Number

pith:MBZ2U2BI

pith:2009:MBZ2U2BIR3DEFAOC7LGGVSGXSM

not attested not anchored not stored refs pending

Early-type galaxies in the PEARS survey: Probing the stellar populations at moderate redshift

(2) MPIA, (3) ASU, (4) STSCI, (5) ARI, (6) CEA Saclay, (7) UC Riverside), Anna Pasquali (2), Anton M. Koekemoer (4), Emanuele Daddi (6), Heidelberg, Ignacio Ferreras (1), James Rhoads (3), Nimish P. Hathi (7) ((1) MSSL-UCL, Nino Panagia (4), Norman Grogin (4), Nor Pirzkal (4), Rogier Windhorst (3), Sangeeta Malhotra (3), Seth Cohen (3), Thorsten Lisker (5)

arxiv:0908.0739 v2 · 2009-08-05 · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MBZ2U2BIR3DEFAOC7LGGVSGXSM}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T02:12:44.265080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6073aa68288ec64281c2facc6ac8d7930949097ca24c040ed5f7b9c5370d2a43

Aliases

arxiv: 0908.0739 · arxiv_version: 0908.0739v2 · doi: 10.48550/arxiv.0908.0739 · pith_short_12: MBZ2U2BIR3DE · pith_short_16: MBZ2U2BIR3DEFAOC · pith_short_8: MBZ2U2BI

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/MBZ2U2BIR3DEFAOC7LGGVSGXSM \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6073aa68288ec64281c2facc6ac8d7930949097ca24c040ed5f7b9c5370d2a43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbd6e44c1eb36b81807e2db7a977050ae2392287aa242c55cb74974cd4771e66",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-08-05T20:06:07Z",
    "title_canon_sha256": "ad7883ce67653ac1dcacabd0be2220807e4f6ee1db2a0e6d0ac865dfe4fa0575"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.0739",
    "kind": "arxiv",
    "version": 2
  }
}